The USB external hard drives that are now being manufactured have storage capacity of 750GB and above. The external drives are portable.On the other hand, the cost of the external hard drives is lower than the flash memories and cards having the similar storage capacity. The cycles of the external USB drives are more than that of the flash drives. The external USB drives are better than the flash drives because there are limited cycles of erase/write in the flash drives. The user can also run software from the USB external hard drives.
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